Bubble machine



FIG. 1 is a rear and top perspective view of a bubble machine, showingmy new design;

FIG. 2 is a front and bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is an enlarged view of a portion indicated “9” in FIG. 1.

The dashed broken lines in the figures illustrate portions of thearticle that form no part of the claimed design. The dash dot dash linesin FIGS. 1 and 9 are for the purpose of showing the area of enlargementand form no part of the claim.

CLAIM The ornamental design for a bubble machine, as shown anddescribed.